Fieldbus Transmitters Calibration and Ranging
Calibration and ranging for a FF device is similar in principle to any other “smart” measurement instrument. Unlike analog instruments, where the “zero” and “span” adjustments completely define the instrument’s…
Electrical Standards
Electrical calibration equipment – used to calibrate instruments measuring voltage, current, and resistance – must be periodically calibrated against higher-tier standards maintained by outside laboratories. In years past, instrument shops…
H1 FF Device Configuration and Commissioning
Fieldbus devices require far more attention in their initial setup and commissioning than their analog counterparts. Unlike an analog transmitter, for example, where the only “configuration” settings are its zero…
Practical Calibration Standards
As previously defined, calibration refers to the checking and adjustment of an instrument so that its output faithfully corresponds to its input throughout a specified range. In order to calibrate…
How to Stop Cyber Attacks on PLC or DCS?
As control system professionals, it is in our interest to ensure our measurement and control systems are secure from unauthorized access. It is helpful to regard system security similarly to…
Unbonded Strain Gauge Principle
These strain gauges are not directly bonded onto the surface of the structure under study. Hence they are termed as unbounded strain gauges. Description of the Unbonded Strain gauges: The arrangement of an unbonded strain gauges…
Semi Conductor or Piezo Resistive Strain Gauge Principle
These gauges are directly bonded (that is pasted) on the surface of the structure under study. Hence they are termed as bonded strain gauges. The three types of bonded strain…
Metal Foil Strain Gauge Principle
These gauges are directly bonded (that is pasted) on the surface of the structure under study. Hence they are termed as bonded strain gauges. The three types of bonded strain…
Fine Wire Strain Gauge Principle
These gauges are directly bonded (that is pasted) on the surface of the structure under study. Hence they are termed as bonded strain gauges. The three types of bonded strain…
Sling Psychrometer Principle
Sling Psychrometer is used to measure both the dry bulb and wet bulb temperatures at time. These temperatures are a measure of humidity content in air. Description of Sling Psychrometer…
